A33G527VL

The A33G527VL from Abov is a 32-bit microcontroller based on the ARM Cortex-M3 core, engineered for main controller applications in household appliances. It combines a 75 MHz Cortex-M3 CPU with large on-chip Flash and data Flash, ample SRAM and a comprehensive peripheral set to address embedded control, sensor acquisition and user-interface tasks.

With integrated analog, timing and communications peripherals plus a high I/O count in a 100-LQFP package, the A33G527VL delivers a high level of system integration for appliance and general-purpose embedded designs.

Key Features

• Core 32-bit ARM Cortex-M3 core running at 75 MHz for deterministic embedded processing.
• Memory On-chip program Flash: 384 Kbytes; data Flash (EEPROM-type): 32 Kbytes; SRAM: 24 Kbytes—enables compact firmware and data storage without external memory.
• Power and Voltage Operates from 3.0 to 5.5 V, supporting a wide supply range for appliance environments.
• Analog / Data Conversion 12-bit A/D converter with 16 channels and up to 70 ksps for multi-channel sensor acquisition.
• Timers & PWM Multiple timers (10 × 16-bit and 1 × 32-bit) plus 8 × 16-bit PWM channels for precise timing and motor or actuator control.
• Connectivity I2C (2 channels), SPI (2 channels), and UART (4 channels) provide flexible peripheral interfacing.
• I/O and LED Drive Up to 90 general-purpose I/O pins with a 16-channel LED driver / high-current port for direct drive of indicators and front-panel LEDs.
• Oscillator & Clock External crystal support and internal HSI 16 MHz oscillator for flexible clocking and system start-up options.
• System Reliability Integrated Watch Dog Timer and broad operating temperature range of −40 to 85 °C for reliable operation in appliance environments.
• Package & Mounting 100-LQFP package (14 × 14 mm, 0.5 mm pitch) with surface-mount mounting for dense PCB integration and high pin count.

Typical Applications

• Home Appliances — Main controller applications for household appliances leveraging on-chip Flash, data Flash and peripheral integration for compact system designs.
• User Interface & Display Control — Multiple UART/I2C/SPI channels and a 16-channel LED driver enable responsive UI, panel control and communication with peripherals.
• Sensor Acquisition & Control — 12-bit ADC (16 channels, 70 ksps), timers and PWM channels provide the building blocks for multi-sensor measurement and control tasks.

Unique Advantages

• Highly integrated memory footprint: 384 KB Flash plus 32 KB data Flash and 24 KB SRAM reduce or eliminate external memory, lowering BOM and board complexity.
• Comprehensive real-world I/O: 90 available I/O pins and a 16-channel LED/high-current port simplify panel and interface designs without extra driver ICs.
• Rich peripheral mix: Multiple UART/I2C/SPI channels, extensive timers, PWM and a high-resolution ADC support diverse control, sensing and communication needs from a single MCU.
• Robust operating range: 3–5.5 V supply range and −40 to 85 °C operating temperature support a wide variety of appliance environments.
• Compact, manufacturable package: 100-LQFP (14 × 14 mm, 0.5 mm pitch) surface-mount package delivers a high pin count in a production-friendly footprint.

Why Choose A33G527VL?

The A33G527VL positions itself as a high-integration, performance-oriented microcontroller tailored to main-controller roles in household appliances and general-purpose embedded systems. Its combination of a 75 MHz Cortex-M3 core, substantial on-chip Flash and data Flash, and a broad peripheral set enables compact, reliable designs with reduced external component needs.

Designers seeking a single-chip solution for sensor acquisition, UI control and actuator/timing management will find the A33G527VL suited to applications that require deterministic processing, flexible connectivity and industrial temperature operation. The device is part of Abov’s A33G52x family and is documented in the product datasheet for detailed integration and programming guidance.

Request a quote or submit an inquiry for pricing and availability of the A33G527VL to begin integrating this Cortex‑M3 microcontroller into your next appliance or embedded design.